Leonard Gillespie was a scientist working for ONI.

Early CarreerEdit

He was a graduate student under Dr. Forester.

Later CarreerEdit

When an old Kig-Yar point defense gauntlet was found in 2536, he managed to break and dismantle it, causing the UNSC to learn much about Covenant Technology and the shield gauntlet itself. Because of this impressive feat, Dr. Halsey had him transferred to Reach.[1]


  1. Halo: Reach, Dr. Halsey's personal journal